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ifupdown: fix for standalone shell; removed hardcoded PATH
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@ -106,6 +106,8 @@ enum {
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static char **__myenviron;
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static char *startup_PATH;
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#if ENABLE_FEATURE_IFUPDOWN_IPV4 || ENABLE_FEATURE_IFUPDOWN_IPV6
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#ifdef CONFIG_FEATURE_IFUPDOWN_IP
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@ -448,50 +450,29 @@ static int static_down(struct interface_defn_t *ifd, execfn *exec)
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return ((result == 2) ? 2 : 0);
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}
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static int execable(char *program)
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{
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struct stat buf;
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if (0 == stat(program, &buf)) {
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if (S_ISREG(buf.st_mode) && (S_IXUSR & buf.st_mode)) {
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return(1);
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}
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}
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return(0);
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}
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static int dhcp_up(struct interface_defn_t *ifd, execfn *exec)
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{
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if (execable("/sbin/udhcpc")) {
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return( execute("udhcpc -n -p /var/run/udhcpc.%iface%.pid -i "
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"%iface% [[-H %hostname%]] [[-c %clientid%]]", ifd, exec));
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} else if (execable("/sbin/pump")) {
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return( execute("pump -i %iface% [[-h %hostname%]] [[-l %leasehours%]]", ifd, exec));
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} else if (execable("/sbin/dhclient")) {
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return( execute("dhclient -pf /var/run/dhclient.%iface%.pid %iface%", ifd, exec));
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} else if (execable("/sbin/dhcpcd")) {
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return( execute("dhcpcd [[-h %hostname%]] [[-i %vendor%]] [[-I %clientid%]] "
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"[[-l %leasetime%]] %iface%", ifd, exec));
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}
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return(0);
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if (execute("udhcpc -n -p /var/run/udhcpc.%iface%.pid -i "
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"%iface% [[-H %hostname%]] [[-c %clientid%]]", ifd, exec)) return 1;
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if (execute("pump -i %iface% [[-h %hostname%]] [[-l %leasehours%]]", ifd, exec)) return 1;
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if (execute("dhclient -pf /var/run/dhclient.%iface%.pid %iface%", ifd, exec)) return 1;
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if (execute("dhcpcd [[-h %hostname%]] [[-i %vendor%]] [[-I %clientid%]] "
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"[[-l %leasetime%]] %iface%", ifd, exec)) return 1;
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return 0;
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}
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static int dhcp_down(struct interface_defn_t *ifd, execfn *exec)
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{
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int result = 0;
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if (execable("/sbin/udhcpc")) {
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/* SIGUSR2 forces udhcpc to release the current lease and go inactive,
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* and SIGTERM causes udhcpc to exit. Signals are queued and processed
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* sequentially so we don't need to sleep */
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result = execute("kill -USR2 `cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec);
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result += execute("kill -TERM `cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec);
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} else if (execable("/sbin/pump")) {
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result = execute("pump -i %iface% -k", ifd, exec);
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} else if (execable("/sbin/dhclient")) {
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result = execute("kill -9 `cat /var/run/dhclient.%iface%.pid` 2>/dev/null", ifd, exec);
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} else if (execable("/sbin/dhcpcd")) {
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result = execute("dhcpcd -k %iface%", ifd, exec);
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}
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return (result || static_down(ifd, exec));
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/* SIGUSR2 forces udhcpc to release the current lease and go inactive,
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* and SIGTERM causes udhcpc to exit. Signals are queued and processed
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* sequentially so we don't need to sleep */
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if (execute("kill -USR2 `cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec)
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|| execute("kill -TERM `cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec))
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return 1;
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if (execute("pump -i %iface% -k", ifd, exec)) return 1;
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if (execute("kill -9 `cat /var/run/dhclient.%iface%.pid` 2>/dev/null", ifd, exec)) return 1;
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if (execute("dhcpcd -k %iface%", ifd, exec)) return 1;
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return static_down(ifd, exec);
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}
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static int bootp_up(struct interface_defn_t *ifd, execfn *exec)
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@ -875,9 +856,7 @@ static void set_environ(struct interface_defn_t *iface, const char *mode)
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*(environend++) = setlocalenv("%s=%s", "ADDRFAM", iface->address_family->name);
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*(environend++) = setlocalenv("%s=%s", "METHOD", iface->method->name);
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*(environend++) = setlocalenv("%s=%s", "MODE", mode);
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/* FIXME: we must not impose our own PATH, it is admin's job!
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Use PATH from parent env */
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*(environend++) = setlocalenv("%s=%s", "PATH", "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin");
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*(environend++) = setlocalenv("%s=%s", "PATH", startup_PATH);
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}
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static int doit(char *str)
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@ -1103,6 +1082,9 @@ int ifupdown_main(int argc, char **argv)
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exit(EXIT_FAILURE);
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}
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startup_PATH = getenv("PATH");
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if (!startup_PATH) startup_PATH = "";
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/* Create a list of interfaces to work on */
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if (DO_ALL) {
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if (cmds == iface_up) {
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